Water and roof run off marks
Where water runs off roof and down side window there is always a mark that is hard to get rid of. I bought some glass stove top cleaner which is a mild abrasive and puts a protective "coating" on. Any...
Forum Discussion
If the mark is black, it can be removed easily with bleach based tub and tile cleaner from the dollar store, or the more expensive black streak remover from any camper store or walmart.
